You can disable push notifications on Android by accessing the option under Settings > Notifications.
Similar to iOS, Android push notifications can be disabled for individual apps or a "do not disturb" mode can be used.
Tap the "Settings" icon.
Select "Apps" (or application manager).
Scroll down and select the BildBet app.
Uncheck the "Show notifications" checkbox to disable push notifications for this app.
The best way to turn off notifications in general is to tap the Do Not Disturb icon on the notification bar.
Another way to disable notifications is to mute individual apps.